A woman looks at a Center for Disease Control (CDC) health advisory sign about the dangers of the Zika virus as she lines up for a security screening at Miami International Airport in Miami, Florida, ... more

A woman looks at a Center for Disease Control (CDC) health advisory sign about the dangers of the Zika virus as she lines up for a security screening at Miami International Airport in Miami, Florida, U.S., May 23, 2016. REUTERS/Carlo Allegri less